"Obviously the disruption is major and the council are good at making things take longer than they should. A few key retailers are opposed to changing the streetscape and feel that High St is one of the last strip shopping precincts in Auckland," Crane said.
Burst rubbish bags, spilling food contents around the Vulcan Lane area, footpaths paved with chewing gum and lack of rubbish removal on Saturday mornings were offputting, he said.
Better signage was needed to show tourists that Auckland had precincts such as High St and the waterfront, he said.
Campbell-Reid said he welcomed robust debate.
Most people liked shared spaces.
"They can see the benefits of what has been achieved on Wynyard Quarter and in the Fort St area and they generally back what we're doing," Campbell-Reid said.
"Our independent research on shared spaces shows overwhelming public support for them. Aucklanders love the idea," he said.
"They say they're more likely to visit [an] area after [an] upgrade. That's great news for any retailer who may have had doubts and for any retailer who wants more foot traffic."